Ampholytic polymers for use as filtration control aids in drilli

Details Ampholytic polymers for use as filtration control aids in drilli Ampholytic polymers for use as filtration control aids in drilli

1981-12-15

1984-06-19

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85P, C09K 702

Patent

active

044552408

ABSTRACT:
The instant invention is directed to an aqueous drilling fluid comprising an aqueous clay dispersion and a carboxylic functional polyampholyte, or the salt thereof. The instant invention is also directed to the use of the drilling fluid.

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